Apparatus for sterilizing liquids.



B. BY. APPARATUS FOR STERILlZING LIQUIDS. APPLICATION FILEDMINI-14,1912.

Patented Dec. 3, 1912.

'UNITED STATES. PATENT OFFICE.

EDUARD E1, or cHAnLoTTnNBURG, GERMANY, AssIGNoa TO SIEMENS & EALSKE, A.G.',

or BERLIN, GERMANY, A CORPORATION or GERMANY.

' APPARATUS FOR STERILIZING LIQUIDS.

Specification of Letters Patent.

Patented Dec. 3, 1912.

Application filed June 4, 1912. Serial No. 701,684.

, lating and like, devices of the sterilizer in such manner that bymanipulating one single handle or the like not only is the circuit ofthe lamp closed or opened and the liquid caused to flow or stop in knownmanner, a predetermined order being observed, but the mercury lamp isalso ignited.

One illustrative embodiment of my invention is represented by way ofexample in the accompanying drawing, wherein Figure 1 is a sideelevation, partly in section, and Fig. 2 is a rear elevation showing myapparatus.

Referring to the drawing, the liquid, 6. 9. water, is sterilized in thevessel 0, rotatable about the axis ab (Fig. 2), the liquid beingsupplied through a pipe d controlled by a cock 8. A quartz lamp econstructed in known manner 'is provided in the vessel.

The apparatus is operated by means of a shaft f which can be displacedaxially by means of a handle f and rotated into a predetermined positionafter being so displaced. When the sterilizer is to be started workingthe shaft f is first axially displaced by means of the handle in thedirection of the righthand, straight arrow shown in Fig. l. The

vessel 0. is driven by means of a clutch 9, it.

being tilted about the axle ab, a spring 72 being simultaneouslytensioned. An arm 2' fast on the shaft actuates a quick-brake switch I:which closes the circuit for the lamp e. During this axial displacementof the shaft the arm ?I is guided by a bar Z and prevents the shaftrotating. Immediately after the quick-brake switch I: has been operatedby the arm 2', when the shaft is shifted longitudinally still fartherthe clutch connecting the shaft f and the vessel 0 is disconnected bythe stop m, and the spring h returns the vessel 0 into its normalposition. The mercury lamp is ignited when the vessel rocks back. Thearm 2' has now left the bar Z and the shaft 7 can rotate in thedirection of the left-hand, curved arrow shown in Fig. 1. The arm 71firstbears against a guide n which prevents a spring 0, tensioned whenthe shaft was displaced, returning the shaft into its normal position.Owin to the shaft being rotated, the cock 8 is gra ually opened by meansof the arm p and the rod 2*, and. the more liquid is supplied to thevessel 0 and also to the discharge pipe t until the cock is fullyopened, the 'farther'the shaft is rotated. The sterilizing action of thequartz lamp is sufi'icient for the greatest possible quantity of liquidwhich passes at any time. As soon as the discharge of liquid is finishedit is solely necessary to turn the shaft f back so far that the cock 8is completely closed. If the handle is then released the spring 0returns the shaft f intov its initial position, the arm i again acts onthe quick-brake switch and breaks the lamp circuit, and the clutchgbetween the shaft and vessel is againengaged.

As will be readily understood the shaft f cannot be returned into itsnormal position nor can the lamp be cut out of circuit as long as thecock 8 is open.

1.- In apparatus for sterilizing liquids, the combination with aspring-influenced vessel, a pipe, having a cock, connected therewith, a

mercury lamp in the vessel,-and a switch for controlling the lamp, ofmeans comprising a handle operatively connected with the vessel, andwith the cock, and adapted to actuate the switch,.for driving the vesselagainst the action of the spring, closing the switch, automaticallyallowing the vessel to return into its normal position, and openingandclosing the cock when said handle is actuate 2. In apparatus forsterilizing liquids, the combination with a spring-influenced vessel, apipe, having a cock,'co nnected therewith, a mercury lamp in the vessel,and'a switch for controlling the lamp, of means comprising a handleoperatively connected with the vessel, and with'the cock, and adapted toactuate the switch, for driving the vessel against the action of thespring, closing the switch, automatically allowing the vessel to returninto its normal position, opening and closing the cock, andautomaticallyopening the switch when said handle is actuated andreleased.

3. In apparatus for sterilizing liquids, the combination with aspring-influenced vessel mounted to rock, a pipe having a cock,connected therewith, a mercury lamp in the vessel, and a switchfor'controlling the lamp, of an axiallydisplaceable and rotatable shaft,a clutch normally connecting the vessel with one end of the shaft, ahandle fast on the other end of the shaft, an arm fast on the shaftadapted to actuate the switch, a horizontal guide for coacting with saidarm and preventing the shaft rotating during a predetermined part of itsaxial displacement, a stop for disconnecting said clutch at the end ofthe said predetermined part of the axial displacement of the shaft, anda second arm on the shaft operatively connected with cock.

4. In apparatus for sterilizing liquids, the combination with aspring-influenced vessel mounted to rock, a pipe, having a cock,connected therewith, a mercury lamp in the vessel, and a switch forcontrolling the lamp, of an axially displaceable and rotatable shaft, aspring tending to hold the shaft in its normal position, a clutchnormally connecting the vessel with one end of the shaft, a handlefaston the other end of the shaft, an arm fast on the shaft adapted toactuate the switch, a horizontal guide for coacting with said arm andpreventing the shaft rorating during a predetermined part of its axialdisplacement, a stop for disconnecting said clutch at the end of thesaid predetermined part of the axial displacement of the shaft, and asecond arm on the shaft operatively connected with cock.

' In testimony whereof, I have signed my name to this specification inthe presence of two witnesses.

EDUARD EY. Witnesses:

HENRY HAsPER, VVOLDEMAR HAUPT.

